diff --git a/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Services/DeliveryZoneService.cs b/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Services/DeliveryZoneService.cs
index 6a2c982..4bb6c84 100644
--- a/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Services/DeliveryZoneService.cs
+++ b/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Services/DeliveryZoneService.cs
@@ -167,7 +167,7 @@ public sealed class DeliveryZoneService : IDeliveryZoneService
 
     private static bool TryReadPolygonFromCoordinates(JsonElement coordinatesElement, out Polygon polygon)
     {
-        polygon = default;
+        polygon = default!;
         if (!TryReadRings(coordinatesElement, out var rings) || rings.Count == 0)
         {
             return false;